Extra-large numbers ensure accurate measurement in both inches and centimeters. Sturdy, all-steel design features a durable powder-coat finish, with a nonslip bottom that holds the unit in place during use. Foam-covered carry handle offers easy transport. Flex-Solo™ Plus features simple-folding construction for easy transport and saves space when stored. Use both with the President's Council on Physical Fitness and Fitnessgram® programs. Simple locknut assembly on Flex-Solo™. Flex-Solo™ Plus only requires attaching the measuring plate.